Lease-forming mechanism for warping-mills



(No Model.)

' H. DAVENPORT.

LEASE FORMING MECHANISM FOR WARPING MILLS. No. 500,097.

Patented June 20, 1893.

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ATTORNEYS.

7 UNITED S ATES PATENT OFFICE.

HERBERT DAVENPORT, OF PATERSON, NEW JERSEY.

LEASE-FORMING MECHANISM FOR WARPING-MILLS.

SPECIFICATION forming part of Letters Patent No. 500,097, dated June 20, 1893.

' Application filed February 14, 1893. Serial No. 462.251. (No model.)

To all whom it may concern.-

Be it known that I, HERBERT DAVENPORT, a citizen of the UnitedStates, residing at-Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Lease-Formin g Mechanism for WarpingMills; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to a new and improved construction of reed and also the use of two reeds in a frame at one time for the purpose of more readilyseparating the filaments, either single or double, without the necessity of separating and lifting the strands byhand, or changing the reeds such methods being the only operations used at the present time.

Besides enabling a more perfect and rapid separation and lifting of the strands, my invention makes it possible for an inexpert operative to perform the operation which now under the method in vogue requires good eye sight and a long course of training, as the warp being once passed through the reeds there is no necessity for releasing or removing them, because the reeds being arranged for single or double cross warps, the warps can be cut 0E as made and bobbins placed upon the creel board, as they are unwound or can be replaced by others of a different color by simply drawing the ends through the reeds when joined or knotted.

It is obvious that the reeds being spaced with respect to the dents, either for single or double filaments, any error by the operative is avoided, for only those strands absolutely required to be raised are lifted for use, the

others being held down a sufficient distance to clearly separate them.- These obj ectsI attain by the mechanism hereinafter more fully described in the specification and illustrated in the accompanying drawings.

In the drawings Figure 1 is a part front view of a reed with dents arranged for a single filament lift. Fig. 2 is a part front view of a reed with dents arranged for a double filament lift. Fig. 3 is a cross section of a pairof reeds of my construction held in a frame and back to back both being down. Fig. 4 is a cross sectional view of the same with one of the reeds lifted for single filaments, and Fig. 5 is a similar cross sectional view with the other reed lifted for double filaments, the one for single filaments being lowered.

Similar letters in the drawings have reference to similar parts.

I will now proceed to describe the construction and manner of using my newly improved reed for warping mill used in textile manufacture, and my improved method of separating and crossing the filaments, either single or double, in warping.

A in Fig. 1 represents a reed of usual construction forsingle filaments, havi ngthe usual frame a' in which the dents d are secured by the wire a soldered together in the usual manner. The dents d are soldered together in pairs by the blockshthus dividing the dents so joined into a central opening eand upper and lower spaces. The surrounding frame projects somewhat in front of the dents to give the necessary rigidity but the back of both frames and dent bars are perfectly flush as shown in Figs. 3, 4, and 5.

In Fig. 1 the dents are so united by the blocks b that in the center of the reed longitudinally, a row of eyes or openings c is formed which alternate throughout the length of the reed with spaces 7o open from the top to the bottom of the frame tt. Fig. 2 illustrates a reed B of similar construction arranged for a double filament and has three dent bars c soldered together by the blocks f, the dent bars c forming when united the center double eyes e' and the two vertical slits or openings lt alternating therewith in groups of two. The tops of the frames of the reeds are provided with handles or rings or any other suitable device for the purpose of raising or lowering'them when necessary. The back of this double reed is as stated fiat and level so that when placed in position in the frame D as shown in Figs. 3, 4 and 5, the backs of the reeds -A and B are in perfect sliding contact and the dent bars d of operation or use the reeds A and B are placed in av suitable frame, as for instance -D- in Fig. 3, the frame D being secured to a stand forming a part of a warping mill of the ordinary construction and secured in the usual manner, notshown in the drawings. The warp W is then drawn in through the dent openings space by space and eye by eye until the whole of the reed is filled was much as v the width ofthe warp or number of filaments required necessitates, each strand passing through both reeds A and B and alternately through, an eye -eand opening k-- of the reed A and alternately through a double eye -eand two openings -lo of the reed B. When the warp W is drawn off the bobbins located on a creel board through the reeds A and Ba suflicient length, the ends are secured together and fastened to the winding reel in the ordinary manner.

When single filament warp is required the reed A- is raised which lifts the alternate filaments as in Fig. 4, leaving the remainder of the warp strands W below. This separation of certain strands or filaments during the process of warping enables a cross of single filaments to be given to the warp during the progress of the process.

In Fig. 5 the single reed Ais shown lowered and the double reed raised to form a cross of double filaments in the same manner as that described for the single filament cross, reed A; but in this case the filaments are alternately raised in groups of two. With this arrangement of a double reed held in the frame D as described, it will be seen that instantaneous separation of the strands of the warp may be effected with a degree -ofcertainty, hitherto unattained. This may be more readily appreciated when it is considered that in the present method of crossing or examination, each filament has to be separated and raised by hand clear from its neighboring strand an operation requiring dexterity and skill and always liable to error.

At present in warping the manufacturer uses either a single or double reed through which the warp threads or filaments are passed, to change from a single to a double cross or from a double cross to a single cross the warp threads must be and are out out and re-threaded through the reed required, either a single or-a double one as the case may be, which means a loss of time and a loss of material.

My method of using, the combined reedsdoes away with the necessity of re-threading, as my combined reeds when once threaded are threaded for all time if desired, as the ends remaining may be tied on to the new ends and drawn through the reeds, 111 case of a change of warp or a change in the color of the silk or other filaments used in textile manufacture, therebypas is obvious, saving considerable time and material to the manufacturer which would otherwise be wasted.

My method of separating andcrossing threads in warping is as follows. I place a single and a double reed back to back in a suitable frame which admits-a vertical motion to be given to the reeds. The single reed is provided with the eyes -e formed by the blocks bwhich connect thedents d-- and the spaces extending from top to bottom of reed the eyes e and spaces is being alternate. When the single reedis elevated,

as shown in Fig. 4:, it separates the warp threads as follows:-The threads passing through the eyes e resting upon thelower blocks 19 of said eyes are lifted and the threads passing through the spaces In are not elevated; every alternate thread being so elevated and separated from the remaining threads a rod such as isordinarily used by warpers is passed through the opening thus made between the upper and lower warp threads; the single reed is then lowered and to complete the cross of the single alternate threads, the double reed is raised to the position shown in Fig. 5 on the drawings when the warper will raise all of the warp threads with his rod or hand until the upper blocks '-b of the single reed are encountered and said blocks retain every alternate thread or filament, that is every thread which passes through the eyes '---e- 'of the single reed; every other alternate thread or filament being in the spaces 70 of the single reed passes above the upper blocks 1) of the single reed and between the blocks f of the double reed, when another rodis inserted bythe warper thus forming a complete single filament cross or lease. The method of forming a cross of double filaments is similar to that of making a single cross, with the exception that, the double reed may be first lifted as is shown in Fig. 5, in which figure the double eyes of the double reed separate the warp W by lifting every two alternate strands or filaments, the other groups of two filaments passing through the spaces 7c of the double reed not being raised. A rod is then inserted between the upper and lowergrou ps of two filaments and the double reed is lowered as in Fig. 3. The single reed is then elevated to the position shown in Fig. 4 when all of the warp threads are elevated .by means of a rod or with the hand, the warp strands that are in the spaces k of the double reed passing up above the upper blocks f of the-double reed B, the upper blocks f of the reed -B retaining and not permitting the filaments passing through the double eyes of the double reed to be elevated. Thus the alternate groups of two filaments that were on the bottom when the strands were first separated pass above the alternate groups of two filaments which in the first separation were elevated by the lifting of the double reed and the cross of the alternate groups of two filaments being complete another rod is inserted and the single reed lowered as in Fig. 3.

While the crossing of a single filamentand the crossing of double filaments are the most usual and ordinary crosses that are made'in weavingitisquite evident that myidea ofassociating two reeds togetherin warping for the purpose of changing the cross of the threads or filaments as desired, embraces not only single and double reeds, but reeds whose dents are so connected as to form eyes which will carry any number of threads or filaments passed through them above or below the plane or position occupied by the filaments or threads not passing through said eyes but through the eyes or spaces in the adjoining reed, enabling the operative to make a cross of as many threads as desired, the reeds being constructed so as to have the requisite number of eyes to carry the warp thread or filament as aforesaid. I shall therefore in my claims ask to be protected in the associating together of two reeds for warping, so constructed as to cross as many threads or filaments as desired.

Having described the construction and use of my newly invented device or reed for Warping purposes, what I claim as new, and desire to secure by Letters Patent, is' as follows:

1. A frame, a reed provided with single openings and havingalevel and smooth-faced back, a reed provided with double openings and 'also having a level and smooth faced back, the single and double reeds being placed back to back in sliding contaotin said frame, substantially as shown and described and for the purposes specified.

2. A frame, a reed mounted in said frame to move up and down therein, which reed has single openings, a second reed also mounted in the same frame adjacent to the first reed and to move up and down, this second reed having double openings, all constructed substantially as set forth.

In testimony whereof I affix my signature, in the presence of two witnesses, this 10th day of February, A D. 1893.

HERBERT DAVENPORT.

Witnesses:

H. P. BANKER, WM. M. DREW. 

